Use it to label electrical outlets and switched to ID circuits. So nice. Can’t see except withUV light. Exactly what I wanted.
Verified purchase: Yes | Condition: New
My husband and they used these to color fuzzy posters. He loves them and the colors look great under black light.
Verified purchase: Yes | Condition: New
Junk. Poor quality not that bright under black light. Go to Dollar tree and get 5 markers for $1.00.that will explode under Black light
Verified purchase: Yes | Condition: New
I highly recommend these pens...they write clear and the color shows up very nice!!!
Verified purchase: Yes | Condition: New
My 7 yo is on the detector kick. He got the uv pen as a joke. Now can’t get enough!
Verified purchase: Yes | Condition: New
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